row engine,straight engine;straight-line engine;in-line engine是什么意思

用法例句

Heat transfer for the liquid with low boiling-point in the vertical tube;

垂直列管内低沸点物料的沸腾传热

Taking self-developed upright 3-cylinder engine electronic control system as an example,the construction of the idling control system is described and the control strategies of idling speed controlling is studied.

以自主开发的直列三缸发动机电控系统为例,研究了发动机怠速控制系统的硬件组成,探讨了怠速控制策略。